Genetics AP Flashcards
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11619673681 | Dominant | Allele that will be expressed if present | 0 | |
11619673682 | Recessive | An allele that is masked when a dominant allele is present | 1 | |
11619673683 | Homozygous Dominant | Having two identical alleles that are dominant (ex TT, BB) | 2 | |
11619673684 | Heterozygous | Having two different alleles for a gene (ex Tt, Bb) | 3 | |
11619673685 | Homozygous Recessive | Having two identical alleles that are recessive (ex tt, bb) | 4 | |
11619673686 | Gamete | Sex cells (egg and sperm) | 5 | |
11619673687 | Trait | A specific characteristic | 6 | |
11619673688 | Allele | The different forms of the same gene | 7 | |
11619673689 | Codominant | When one allele is not dominant over the other and both show up at the same time (ex. spots) | 8 | |
11619673690 | Incomplete Dominance | When alleles are neither dominant or recessive and the result is a phenotype that is mixed (ex. white and red alleles make pink) | 9 | |
11619673691 | Multiple Allele | A gene that has more than two alleles (ex. blood type) | 10 | |
11619673692 | Polygenic Trait | A trait controlled by two or more genes (ex. skin color) | 11 | |
11619673693 | Pedigree | A diagram that shows the occurrence of a genetic trait in several generations of a family (family tree of a trait) | 12 | |
11619673695 | Diploid | Two sets of chromosomes | 13 | |
11619673696 | Haploid | One set of chromosomes | 14 | |
11619673697 | Phenotype | The physical characteristic of an organism | 15 | |
11619673699 | Dihybrid | Cross between two organisms where two distinct traits are being studied. | 16 | |
11619673700 | Monohybrid | Cross between two organisms where only one trait is being studied. | 17 | |
11619673701 | Parental Cross | The first mating involving parents that are pure (homozygous) for their traits. | 18 | |
11619673702 | F1 Generation | Offspring of the Parental Cross | 19 | |
11619673703 | F2 Generation | Offspring of the F1 generation | 20 | |
11619673704 | Probability | A number that describes how likely it is that an event will occur. | 21 | |
11619673707 | A Blood Type | Has A antigens present on surface of blood. Has anti-B antibodies. (genotypes: IA IA or IA io) | 22 | |
11619673708 | B Blood Type | Has B antigens present on surface of blood. Has anti-A antibodies. (genotypes: IB IB or IB io) | 23 | |
11619673709 | AB Blood Type | Has A and B antigens and no antibodies so it is the universal recipient (genotype IA IB) | 24 | |
11619673710 | O Blood Type | Contains no antigens and contains Anti-A and Anti-B antibodies so it is the universal donor (genotype io io) | 25 | |
11619673711 | Rh + | Has Rh antigen, no antibodies | 26 | |
11619673712 | Rh- | No Rh antigen, but has anti Rh+ antibodies | 27 | |
11619673713 | Gene | A segment of DNA on a chromosome that codes for a specific trait | 28 | |
11619673714 | Sex-linked Trait | Traits controlled by genes located on sex chromosomes | 29 | |
11619673715 | Genotype | An organism's genetic makeup or allele combinations | 30 | |
11619673716 | Universal Donor | Type O blood because there are not antigens on the blood cells | 31 | |
11619673717 | Chromosome | Contains genetic information | 32 | |
11619673718 | Sex Chromosome | Chromosomes that determine the sex of an individual | 33 | |
11619673719 | Segregation | Separation of alleles | 34 |